Determine whether the equation represents a direct variation. If it does, find the constant of variation. 2y=5x+1
2 answers:
we know that
A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form or
In a direct variation the equation of the line passes through the origin
In this problem we have
----> this line not passes through the origin
therefore
<u>The answer is</u>
the equation does not represent a direct variation
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So that is equal to 180 miles per 2 hours which is 90 miles per hour if each hour has the same m/hr rate.
You can set up a proportion:
let x = number of miles per hour
cross multiply and you get
2x=180
divide both sides by 2 and you get
x=90
so you get the same answer both ways,
90 miles per hour
You can set up a proportion:
let x = number of miles per hour
cross multiply and you get
2x=180
divide both sides by 2 and you get
x=90
so you get the same answer both ways,
90 miles per hour